inventor of the ScanGauge - Page 2 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 02-09-2007, 11:52 AM   #11
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
Quote:
Originally Posted by skewbe View Post
Maybe Ron knows?
http://www.teamswift.net/viewtopic.php?t=20431 -

sorry, no specifics in the service manual for our 98's (aside from confirming that fuel cut-off exists).
__________________

MetroMPG is offline   Reply With Quote
Old 02-09-2007, 12:05 PM   #12
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
Quote:
Originally Posted by theclencher View Post
I personally would need a huge price drop in the thing and/or the availability of lots of cheap used ones before I get one.
I think we could probably collectively come up with pre-obd2 instrumentation options. With respect to Yoshi, many people driving pre-obd2 cars by definition can't afford (or don't want to spend the money for) a MID.

One thing I've been thinking about is simply a datalogging DMM. You could use it to monitor/graph a single sensor variable, such as MAP. It wouldn't translate directly into MPG, but would still be very useful for testing or commuting, once you established baseline instant/average values. Essentially a digital, recordable vacuum gauge. That's the simplest thing I can think of.
__________________

MetroMPG is offline   Reply With Quote
Old 02-09-2007, 12:43 PM   #13
FE nut
 
diamondlarry's Avatar
 
Join Date: Sep 2005
Posts: 1,020
Country: United States
I would like to see afeature that would allow you to see instant and average FE on the same screen.
__________________
Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.

2007 Prius,



Team Slow Burn
diamondlarry is offline   Reply With Quote
Old 02-09-2007, 12:47 PM   #14
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
I asked. Apparently, that's coming too. "TRP" (or equivalent) will be one of the 4 gauges you'll be able to select on the 4-gauge screen.

The only thing is: I have no dates for these features. He was reluctant to offer any. (I can sympathize: the ForkenSwift's maiden voyage was to have happened in September, right Ben?? )
MetroMPG is offline   Reply With Quote
Old 02-09-2007, 12:55 PM   #15
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
MetroMPG -

Quote:
Originally Posted by MetroMPG View Post
I tried to find the Metro conditions when fuel cutoff occurs, but couldn't.

I'm guessing that's what you're seeing, but it would be nice to be able to compare it to when the car is "officially" supposed to be doing it.

It makes sense: If the car were still in closed loop when the injector shuts off, the computer would probably have a hissy fit because the O2 sensor information would be showing a value very definitely non-stoich. By flipping into open loop, it's basically saying: ignore the O2 sensor until I tell you otherwise.
Ooooooh, I am going to test this tonight!

CarloSW2
__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 02-09-2007, 12:56 PM   #16
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
diamondlarry-

Quote:
Originally Posted by diamondlarry View Post
I would like to see afeature that would allow you to see instant and average FE on the same screen.
I second the vote.

CarloSW2
__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 02-09-2007, 12:58 PM   #17
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
MetroMPG -

Why does the ScanGauge need to know the size of the engine? I know it has already been explained by others on this site, but I want Ron to say it.

CarloSW2
__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 02-09-2007, 04:07 PM   #18
Registered Member
 
Join Date: Oct 2005
Posts: 1,978
Country: United States
Echo + Question

Quote:
Originally Posted by cfg83 View Post
MetroMPG -

Why does the ScanGauge need to know the size of the engine? I know it has already been explained by others on this site, but I want Ron to say it.

CarloSW2
Does the SG-I have fuzzy logic that learns the cars behavior? The main question being, I take it from rental to rental and adjust the engine size, and then bring it back to the 'Teg. Does the engine displacement and injector pulse calculate MPG, or does the size of the fuel tank figure into the equation?

BTW: Very interesting interview!

RH77
__________________
rh77 is offline   Reply With Quote
Old 02-19-2007, 08:48 AM   #19
Semi-retired OPEC Buster
 
BeeUU's Avatar
 
Join Date: Jan 2007
Posts: 200
Country: United States
Load Calculation

Could you ask how SG calculates Load on the engine. That is a great feature and was wondering how they did that...

Thanks MetroMPG for your time!!!
__________________
B W


BeeUU is offline   Reply With Quote
Old 02-19-2007, 09:03 AM   #20
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
BeeUU, I've already wrapped up the interview (will finish the write-up this week, or early next), but you can get his email from the SG website if you want to send questions directly.

Rh: no fuzzy logic. The manual adjustment factor is how it learns. Ron said: "You need to set the engine and fuel tank size for each vehicle. To get the best absolute accuracy, you need to go through a tank of gas, but it should be within 10% for gas and 20% for diesel even before the adjustment."

10% sounds pessimistic to me. I don't think mine was ever more than 4 or 5% off before I used the adjustment feature.
__________________

MetroMPG is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mothballs / Napthalene / WD40 SVOboy General Fuel Topics 24 11-12-2007 09:17 PM
Anyone have experience making their own solar panels? MetroMPG Electric and Solar powered 17 08-29-2007 06:43 PM
Hovercraft 88HF General Fuel Topics 2 06-21-2007 11:41 PM
Belated Intro GasSavers_brick Introduce Yourself - New member Welcome 4 12-22-2006 07:48 AM
Atlanta Auto Show GasSavers_DaX General Discussion (Off-Topic) 26 05-07-2006 06:02 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 11:25 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.